About: http://webisa.webdatacommons.org/420588093

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Temperatures as low as about 1100??? C. are envisaged as being possible for the preparation of ??'SiAlON. Such impurities include Fe, Ca and Mg for example as well as others as will be known in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca